China Smog Photos Show How Bad Its Air Pollution Problem Has Become

China has a serious smog problem. So much so that the northern city of Harbin, home to about 11 million people, was forced to cancel classes, close down the airport and suspend certain bus routes Monday.

While visibility in the capital of the Heilongjiang province was less than 50 meters (164 feet), Harbin was not the only city in the region affected by smog. In the southeastern city of Shenyang, some 300 miles from Harbin, a heavy haze partially obscured a 75-story skyscraper from view. (Head over to The Daily Beast to see a comparison to a normal view of the landmark.)